kenwheeler/slick — pull request #778 by colbyfayock (2014-11-11 19:48:33+00:00)
Title: Remove indexOf in navigables logic for ie8 support

indexOf isn't working as expected in ie8, this switches the method of the "navigables" index check for legacy support

http://stackoverflow.com/questions/3629183/why-doesnt-indexof-work-on-an-array-ie8